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Annotation of mandoc/mdoc.c, Revision 1.250

1.250   ! schwarze    1: /*     $Id: mdoc.c,v 1.249 2015/04/19 14:25:41 schwarze Exp $ */
1.1       kristaps    2: /*
1.182     schwarze    3:  * Copyright (c) 2008, 2009, 2010, 2011 Kristaps Dzonsons <kristaps@bsd.lv>
1.237     schwarze    4:  * Copyright (c) 2010, 2012-2015 Ingo Schwarze <schwarze@openbsd.org>
1.1       kristaps    5:  *
                      6:  * Permission to use, copy, modify, and distribute this software for any
1.75      kristaps    7:  * purpose with or without fee is hereby granted, provided that the above
                      8:  * copyright notice and this permission notice appear in all copies.
1.1       kristaps    9:  *
1.241     schwarze   10:  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHORS DISCLAIM ALL WARRANTIES
1.75      kristaps   11:  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
1.241     schwarze   12:  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR
1.75      kristaps   13:  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
                     14:  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
                     15:  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
                     16:  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
1.1       kristaps   17:  */
1.114     kristaps   18: #include "config.h"
                     19:
1.106     kristaps   20: #include <sys/types.h>
                     21:
1.1       kristaps   22: #include <assert.h>
1.211     schwarze   23: #include <ctype.h>
1.1       kristaps   24: #include <stdarg.h>
1.73      kristaps   25: #include <stdio.h>
1.1       kristaps   26: #include <stdlib.h>
                     27: #include <string.h>
1.120     kristaps   28: #include <time.h>
1.1       kristaps   29:
1.239     schwarze   30: #include "mandoc_aux.h"
                     31: #include "mandoc.h"
                     32: #include "roff.h"
1.187     kristaps   33: #include "mdoc.h"
1.239     schwarze   34: #include "libmandoc.h"
1.247     schwarze   35: #include "roff_int.h"
1.70      kristaps   36: #include "libmdoc.h"
1.1       kristaps   37:
1.216     schwarze   38: const  char *const __mdoc_macronames[MDOC_MAX + 1] = {
1.248     schwarze   39:        "text",
1.82      kristaps   40:        "Ap",           "Dd",           "Dt",           "Os",
1.1       kristaps   41:        "Sh",           "Ss",           "Pp",           "D1",
                     42:        "Dl",           "Bd",           "Ed",           "Bl",
                     43:        "El",           "It",           "Ad",           "An",
                     44:        "Ar",           "Cd",           "Cm",           "Dv",
                     45:        "Er",           "Ev",           "Ex",           "Fa",
                     46:        "Fd",           "Fl",           "Fn",           "Ft",
                     47:        "Ic",           "In",           "Li",           "Nd",
                     48:        "Nm",           "Op",           "Ot",           "Pa",
                     49:        "Rv",           "St",           "Va",           "Vt",
1.114     kristaps   50:        "Xr",           "%A",           "%B",           "%D",
                     51:        "%I",           "%J",           "%N",           "%O",
                     52:        "%P",           "%R",           "%T",           "%V",
1.1       kristaps   53:        "Ac",           "Ao",           "Aq",           "At",
                     54:        "Bc",           "Bf",           "Bo",           "Bq",
                     55:        "Bsx",          "Bx",           "Db",           "Dc",
                     56:        "Do",           "Dq",           "Ec",           "Ef",
                     57:        "Em",           "Eo",           "Fx",           "Ms",
                     58:        "No",           "Ns",           "Nx",           "Ox",
                     59:        "Pc",           "Pf",           "Po",           "Pq",
                     60:        "Qc",           "Ql",           "Qo",           "Qq",
                     61:        "Re",           "Rs",           "Sc",           "So",
                     62:        "Sq",           "Sm",           "Sx",           "Sy",
                     63:        "Tn",           "Ux",           "Xc",           "Xo",
                     64:        "Fo",           "Fc",           "Oo",           "Oc",
                     65:        "Bk",           "Ek",           "Bt",           "Hf",
1.82      kristaps   66:        "Fr",           "Ud",           "Lb",           "Lp",
                     67:        "Lk",           "Mt",           "Brq",          "Bro",
1.114     kristaps   68:        "Brc",          "%C",           "Es",           "En",
                     69:        "Dx",           "%Q",           "br",           "sp",
1.248     schwarze   70:        "%U",           "Ta",           "ll",
                     71: };
1.1       kristaps   72:
1.213     schwarze   73: const  char *const __mdoc_argnames[MDOC_ARG_MAX] = {
1.1       kristaps   74:        "split",                "nosplit",              "ragged",
1.213     schwarze   75:        "unfilled",             "literal",              "file",
                     76:        "offset",               "bullet",               "dash",
                     77:        "hyphen",               "item",                 "enum",
                     78:        "tag",                  "diag",                 "hang",
                     79:        "ohang",                "inset",                "column",
                     80:        "width",                "compact",              "std",
1.52      kristaps   81:        "filled",               "words",                "emphasis",
1.108     kristaps   82:        "symbolic",             "nested",               "centered"
1.1       kristaps   83:        };
                     84:
1.248     schwarze   85: const  char * const *mdoc_macronames = __mdoc_macronames + 1;
1.1       kristaps   86: const  char * const *mdoc_argnames = __mdoc_argnames;
                     87:
1.242     schwarze   88: static int               mdoc_ptext(struct roff_man *, int, char *, int);
                     89: static int               mdoc_pmacro(struct roff_man *, int, char *, int);
1.88      kristaps   90:
1.1       kristaps   91:
1.234     schwarze   92: void
1.242     schwarze   93: mdoc_endparse(struct roff_man *mdoc)
1.20      kristaps   94: {
                     95:
1.232     schwarze   96:        mdoc_macroend(mdoc);
1.181     kristaps   97: }
                     98:
1.50      kristaps   99: /*
1.53      kristaps  100:  * Main parse routine.  Parses a single line -- really just hands off to
1.123     kristaps  101:  * the macro (mdoc_pmacro()) or text parser (mdoc_ptext()).
1.50      kristaps  102:  */
1.20      kristaps  103: int
1.242     schwarze  104: mdoc_parseln(struct roff_man *mdoc, int ln, char *buf, int offs)
1.1       kristaps  105: {
                    106:
1.239     schwarze  107:        if (mdoc->last->type != ROFFT_EQN || ln > mdoc->last->line)
1.228     schwarze  108:                mdoc->flags |= MDOC_NEWLINE;
1.153     schwarze  109:
                    110:        /*
                    111:         * Let the roff nS register switch SYNOPSIS mode early,
                    112:         * such that the parser knows at all times
                    113:         * whether this mode is on or off.
                    114:         * Note that this mode is also switched by the Sh macro.
                    115:         */
1.204     schwarze  116:        if (roff_getreg(mdoc->roff, "nS"))
                    117:                mdoc->flags |= MDOC_SYNOPSIS;
                    118:        else
                    119:                mdoc->flags &= ~MDOC_SYNOPSIS;
1.153     schwarze  120:
1.203     schwarze  121:        return(roff_getcontrol(mdoc->roff, buf, &offs) ?
1.213     schwarze  122:            mdoc_pmacro(mdoc, ln, buf, offs) :
                    123:            mdoc_ptext(mdoc, ln, buf, offs));
1.1       kristaps  124: }
                    125:
1.232     schwarze  126: void
1.148     kristaps  127: mdoc_macro(MACRO_PROT_ARGS)
1.88      kristaps  128: {
1.248     schwarze  129:        assert(tok > TOKEN_NONE && tok < MDOC_MAX);
1.122     kristaps  130:
1.223     schwarze  131:        if (mdoc->flags & MDOC_PBODY) {
                    132:                if (tok == MDOC_Dt) {
                    133:                        mandoc_vmsg(MANDOCERR_DT_LATE,
                    134:                            mdoc->parse, line, ppos,
                    135:                            "Dt %s", buf + *pos);
1.232     schwarze  136:                        return;
1.223     schwarze  137:                }
                    138:        } else if ( ! (mdoc_macros[tok].flags & MDOC_PROLOGUE)) {
                    139:                if (mdoc->meta.title == NULL) {
                    140:                        mandoc_vmsg(MANDOCERR_DT_NOTITLE,
                    141:                            mdoc->parse, line, ppos, "%s %s",
                    142:                            mdoc_macronames[tok], buf + *pos);
                    143:                        mdoc->meta.title = mandoc_strdup("UNTITLED");
                    144:                }
1.203     schwarze  145:                if (NULL == mdoc->meta.vol)
                    146:                        mdoc->meta.vol = mandoc_strdup("LOCAL");
                    147:                mdoc->flags |= MDOC_PBODY;
1.120     kristaps  148:        }
1.232     schwarze  149:        (*mdoc_macros[tok].fp)(mdoc, tok, line, ppos, pos, buf);
1.73      kristaps  150: }
                    151:
1.231     schwarze  152: void
1.242     schwarze  153: mdoc_tail_alloc(struct roff_man *mdoc, int line, int pos, int tok)
1.17      kristaps  154: {
1.240     schwarze  155:        struct roff_node *p;
1.17      kristaps  156:
1.247     schwarze  157:        p = roff_node_alloc(mdoc, line, pos, ROFFT_TAIL, tok);
                    158:        roff_node_append(mdoc, p);
1.242     schwarze  159:        mdoc->next = ROFF_NEXT_CHILD;
1.152     schwarze  160: }
                    161:
1.240     schwarze  162: struct roff_node *
1.242     schwarze  163: mdoc_endbody_alloc(struct roff_man *mdoc, int line, int pos, int tok,
1.240     schwarze  164:                struct roff_node *body, enum mdoc_endbody end)
1.152     schwarze  165: {
1.240     schwarze  166:        struct roff_node *p;
1.152     schwarze  167:
1.237     schwarze  168:        body->flags |= MDOC_ENDED;
                    169:        body->parent->flags |= MDOC_ENDED;
1.247     schwarze  170:        p = roff_node_alloc(mdoc, line, pos, ROFFT_BODY, tok);
1.237     schwarze  171:        p->body = body;
1.202     schwarze  172:        p->norm = body->norm;
1.152     schwarze  173:        p->end = end;
1.247     schwarze  174:        roff_node_append(mdoc, p);
1.242     schwarze  175:        mdoc->next = ROFF_NEXT_SIBLING;
1.235     schwarze  176:        return(p);
1.1       kristaps  177: }
                    178:
1.240     schwarze  179: struct roff_node *
1.242     schwarze  180: mdoc_block_alloc(struct roff_man *mdoc, int line, int pos,
1.240     schwarze  181:        int tok, struct mdoc_arg *args)
1.1       kristaps  182: {
1.240     schwarze  183:        struct roff_node *p;
1.1       kristaps  184:
1.247     schwarze  185:        p = roff_node_alloc(mdoc, line, pos, ROFFT_BLOCK, tok);
1.77      kristaps  186:        p->args = args;
                    187:        if (p->args)
1.53      kristaps  188:                (args->refcnt)++;
1.172     kristaps  189:
                    190:        switch (tok) {
1.213     schwarze  191:        case MDOC_Bd:
1.172     kristaps  192:                /* FALLTHROUGH */
1.213     schwarze  193:        case MDOC_Bf:
1.172     kristaps  194:                /* FALLTHROUGH */
1.213     schwarze  195:        case MDOC_Bl:
1.217     schwarze  196:                /* FALLTHROUGH */
                    197:        case MDOC_En:
1.173     kristaps  198:                /* FALLTHROUGH */
1.213     schwarze  199:        case MDOC_Rs:
1.172     kristaps  200:                p->norm = mandoc_calloc(1, sizeof(union mdoc_data));
                    201:                break;
                    202:        default:
                    203:                break;
                    204:        }
1.247     schwarze  205:        roff_node_append(mdoc, p);
1.242     schwarze  206:        mdoc->next = ROFF_NEXT_CHILD;
1.231     schwarze  207:        return(p);
1.1       kristaps  208: }
                    209:
1.231     schwarze  210: void
1.242     schwarze  211: mdoc_elem_alloc(struct roff_man *mdoc, int line, int pos,
1.240     schwarze  212:        int tok, struct mdoc_arg *args)
1.1       kristaps  213: {
1.240     schwarze  214:        struct roff_node *p;
1.1       kristaps  215:
1.247     schwarze  216:        p = roff_node_alloc(mdoc, line, pos, ROFFT_ELEM, tok);
1.77      kristaps  217:        p->args = args;
                    218:        if (p->args)
1.53      kristaps  219:                (args->refcnt)++;
1.172     kristaps  220:
                    221:        switch (tok) {
1.213     schwarze  222:        case MDOC_An:
1.172     kristaps  223:                p->norm = mandoc_calloc(1, sizeof(union mdoc_data));
                    224:                break;
                    225:        default:
                    226:                break;
                    227:        }
1.247     schwarze  228:        roff_node_append(mdoc, p);
1.242     schwarze  229:        mdoc->next = ROFF_NEXT_CHILD;
1.175     kristaps  230: }
1.1       kristaps  231:
1.231     schwarze  232: void
1.242     schwarze  233: mdoc_node_relink(struct roff_man *mdoc, struct roff_node *p)
1.201     schwarze  234: {
                    235:
1.247     schwarze  236:        roff_node_unlink(mdoc, p);
                    237:        roff_node_append(mdoc, p);
1.1       kristaps  238: }
                    239:
1.53      kristaps  240: /*
                    241:  * Parse free-form text, that is, a line that does not begin with the
                    242:  * control character.
                    243:  */
                    244: static int
1.242     schwarze  245: mdoc_ptext(struct roff_man *mdoc, int line, char *buf, int offs)
1.1       kristaps  246: {
1.240     schwarze  247:        struct roff_node *n;
1.142     kristaps  248:        char             *c, *ws, *end;
                    249:
1.203     schwarze  250:        assert(mdoc->last);
                    251:        n = mdoc->last;
1.142     kristaps  252:
                    253:        /*
1.144     kristaps  254:         * Divert directly to list processing if we're encountering a
1.239     schwarze  255:         * columnar ROFFT_BLOCK with or without a prior ROFFT_BLOCK entry
                    256:         * (a ROFFT_BODY means it's already open, in which case we should
1.144     kristaps  257:         * process within its context in the normal way).
1.142     kristaps  258:         */
                    259:
1.239     schwarze  260:        if (n->tok == MDOC_Bl && n->type == ROFFT_BODY &&
1.238     schwarze  261:            n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) {
1.144     kristaps  262:                /* `Bl' is open without any children. */
1.203     schwarze  263:                mdoc->flags |= MDOC_FREECOL;
1.232     schwarze  264:                mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf);
                    265:                return(1);
1.142     kristaps  266:        }
                    267:
1.239     schwarze  268:        if (n->tok == MDOC_It && n->type == ROFFT_BLOCK &&
1.213     schwarze  269:            NULL != n->parent &&
                    270:            MDOC_Bl == n->parent->tok &&
                    271:            LIST_column == n->parent->norm->Bl.type) {
1.144     kristaps  272:                /* `Bl' has block-level `It' children. */
1.203     schwarze  273:                mdoc->flags |= MDOC_FREECOL;
1.232     schwarze  274:                mdoc_macro(mdoc, MDOC_It, line, offs, &offs, buf);
                    275:                return(1);
1.142     kristaps  276:        }
1.124     kristaps  277:
1.137     schwarze  278:        /*
                    279:         * Search for the beginning of unescaped trailing whitespace (ws)
                    280:         * and for the first character not to be output (end).
                    281:         */
1.139     kristaps  282:
                    283:        /* FIXME: replace with strcspn(). */
1.137     schwarze  284:        ws = NULL;
                    285:        for (c = end = buf + offs; *c; c++) {
                    286:                switch (*c) {
                    287:                case ' ':
                    288:                        if (NULL == ws)
                    289:                                ws = c;
                    290:                        continue;
                    291:                case '\t':
                    292:                        /*
                    293:                         * Always warn about trailing tabs,
                    294:                         * even outside literal context,
                    295:                         * where they should be put on the next line.
                    296:                         */
                    297:                        if (NULL == ws)
                    298:                                ws = c;
                    299:                        /*
                    300:                         * Strip trailing tabs in literal context only;
                    301:                         * outside, they affect the next line.
                    302:                         */
1.203     schwarze  303:                        if (MDOC_LITERAL & mdoc->flags)
1.137     schwarze  304:                                continue;
                    305:                        break;
                    306:                case '\\':
                    307:                        /* Skip the escaped character, too, if any. */
                    308:                        if (c[1])
                    309:                                c++;
                    310:                        /* FALLTHROUGH */
                    311:                default:
                    312:                        ws = NULL;
                    313:                        break;
                    314:                }
                    315:                end = c + 1;
                    316:        }
                    317:        *end = '\0';
1.91      kristaps  318:
1.137     schwarze  319:        if (ws)
1.218     schwarze  320:                mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
                    321:                    line, (int)(ws-buf), NULL);
1.115     kristaps  322:
1.231     schwarze  323:        if (buf[offs] == '\0' && ! (mdoc->flags & MDOC_LITERAL)) {
1.218     schwarze  324:                mandoc_msg(MANDOCERR_FI_BLANK, mdoc->parse,
                    325:                    line, (int)(c - buf), NULL);
1.124     kristaps  326:
1.119     kristaps  327:                /*
1.165     schwarze  328:                 * Insert a `sp' in the case of a blank line.  Technically,
1.124     kristaps  329:                 * blank lines aren't allowed, but enough manuals assume this
                    330:                 * behaviour that we want to work around it.
1.119     kristaps  331:                 */
1.250   ! schwarze  332:                roff_elem_alloc(mdoc, line, offs, MDOC_sp);
1.242     schwarze  333:                mdoc->next = ROFF_NEXT_SIBLING;
1.230     schwarze  334:                mdoc_valid_post(mdoc);
                    335:                return(1);
1.119     kristaps  336:        }
1.68      kristaps  337:
1.249     schwarze  338:        roff_word_alloc(mdoc, line, offs, buf+offs);
1.91      kristaps  339:
1.231     schwarze  340:        if (mdoc->flags & MDOC_LITERAL)
1.137     schwarze  341:                return(1);
1.128     kristaps  342:
                    343:        /*
                    344:         * End-of-sentence check.  If the last character is an unescaped
                    345:         * EOS character, then flag the node as being the end of a
                    346:         * sentence.  The front-end will know how to interpret this.
                    347:         */
1.132     kristaps  348:
1.137     schwarze  349:        assert(buf < end);
                    350:
1.207     schwarze  351:        if (mandoc_eos(buf+offs, (size_t)(end-buf-offs)))
1.203     schwarze  352:                mdoc->last->flags |= MDOC_EOS;
1.128     kristaps  353:        return(1);
1.1       kristaps  354: }
                    355:
1.53      kristaps  356: /*
                    357:  * Parse a macro line, that is, a line beginning with the control
                    358:  * character.
                    359:  */
1.155     kristaps  360: static int
1.242     schwarze  361: mdoc_pmacro(struct roff_man *mdoc, int ln, char *buf, int offs)
1.1       kristaps  362: {
1.240     schwarze  363:        struct roff_node *n;
1.229     schwarze  364:        const char       *cp;
1.240     schwarze  365:        int               tok;
1.188     kristaps  366:        int               i, sv;
1.144     kristaps  367:        char              mac[5];
1.63      kristaps  368:
1.188     kristaps  369:        sv = offs;
1.130     kristaps  370:
1.213     schwarze  371:        /*
1.162     schwarze  372:         * Copy the first word into a nil-terminated buffer.
1.229     schwarze  373:         * Stop when a space, tab, escape, or eoln is encountered.
1.160     kristaps  374:         */
1.1       kristaps  375:
1.188     kristaps  376:        i = 0;
1.229     schwarze  377:        while (i < 4 && strchr(" \t\\", buf[offs]) == NULL)
1.188     kristaps  378:                mac[i++] = buf[offs++];
                    379:
                    380:        mac[i] = '\0';
                    381:
1.248     schwarze  382:        tok = (i > 1 && i < 4) ? mdoc_hash_find(mac) : TOKEN_NONE;
1.1       kristaps  383:
1.248     schwarze  384:        if (tok == TOKEN_NONE) {
1.222     schwarze  385:                mandoc_msg(MANDOCERR_MACRO, mdoc->parse,
                    386:                    ln, sv, buf + sv - 1);
1.58      kristaps  387:                return(1);
1.53      kristaps  388:        }
1.1       kristaps  389:
1.229     schwarze  390:        /* Skip a leading escape sequence or tab. */
1.160     kristaps  391:
1.229     schwarze  392:        switch (buf[offs]) {
                    393:        case '\\':
                    394:                cp = buf + offs + 1;
                    395:                mandoc_escape(&cp, NULL, NULL);
                    396:                offs = cp - buf;
                    397:                break;
                    398:        case '\t':
1.188     kristaps  399:                offs++;
1.229     schwarze  400:                break;
                    401:        default:
                    402:                break;
                    403:        }
1.160     kristaps  404:
                    405:        /* Jump to the next non-whitespace word. */
1.1       kristaps  406:
1.188     kristaps  407:        while (buf[offs] && ' ' == buf[offs])
                    408:                offs++;
1.1       kristaps  409:
1.213     schwarze  410:        /*
1.125     kristaps  411:         * Trailing whitespace.  Note that tabs are allowed to be passed
                    412:         * into the parser as "text", so we only warn about spaces here.
                    413:         */
1.115     kristaps  414:
1.188     kristaps  415:        if ('\0' == buf[offs] && ' ' == buf[offs - 1])
1.218     schwarze  416:                mandoc_msg(MANDOCERR_SPACE_EOL, mdoc->parse,
                    417:                    ln, offs - 1, NULL);
1.115     kristaps  418:
1.144     kristaps  419:        /*
                    420:         * If an initial macro or a list invocation, divert directly
                    421:         * into macro processing.
                    422:         */
                    423:
1.232     schwarze  424:        if (NULL == mdoc->last || MDOC_It == tok || MDOC_El == tok) {
                    425:                mdoc_macro(mdoc, tok, ln, sv, &offs, buf);
                    426:                return(1);
                    427:        }
1.144     kristaps  428:
1.203     schwarze  429:        n = mdoc->last;
                    430:        assert(mdoc->last);
1.144     kristaps  431:
                    432:        /*
                    433:         * If the first macro of a `Bl -column', open an `It' block
                    434:         * context around the parsed macro.
                    435:         */
                    436:
1.239     schwarze  437:        if (n->tok == MDOC_Bl && n->type == ROFFT_BODY &&
1.238     schwarze  438:            n->end == ENDBODY_NOT && n->norm->Bl.type == LIST_column) {
1.203     schwarze  439:                mdoc->flags |= MDOC_FREECOL;
1.232     schwarze  440:                mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf);
                    441:                return(1);
1.144     kristaps  442:        }
                    443:
                    444:        /*
                    445:         * If we're following a block-level `It' within a `Bl -column'
                    446:         * context (perhaps opened in the above block or in ptext()),
                    447:         * then open an `It' block context around the parsed macro.
1.98      kristaps  448:         */
1.144     kristaps  449:
1.239     schwarze  450:        if (n->tok == MDOC_It && n->type == ROFFT_BLOCK &&
1.213     schwarze  451:            NULL != n->parent &&
                    452:            MDOC_Bl == n->parent->tok &&
                    453:            LIST_column == n->parent->norm->Bl.type) {
1.203     schwarze  454:                mdoc->flags |= MDOC_FREECOL;
1.232     schwarze  455:                mdoc_macro(mdoc, MDOC_It, ln, sv, &sv, buf);
                    456:                return(1);
1.144     kristaps  457:        }
                    458:
                    459:        /* Normal processing of a macro. */
                    460:
1.232     schwarze  461:        mdoc_macro(mdoc, tok, ln, sv, &offs, buf);
1.208     schwarze  462:
                    463:        /* In quick mode (for mandocdb), abort after the NAME section. */
                    464:
                    465:        if (mdoc->quick && MDOC_Sh == tok &&
                    466:            SEC_NAME != mdoc->last->sec)
                    467:                return(2);
1.1       kristaps  468:
1.53      kristaps  469:        return(1);
1.1       kristaps  470: }
1.100     kristaps  471:
1.186     kristaps  472: enum mdelim
                    473: mdoc_isdelim(const char *p)
                    474: {
                    475:
                    476:        if ('\0' == p[0])
                    477:                return(DELIM_NONE);
                    478:
                    479:        if ('\0' == p[1])
                    480:                switch (p[0]) {
1.213     schwarze  481:                case '(':
1.186     kristaps  482:                        /* FALLTHROUGH */
1.213     schwarze  483:                case '[':
1.186     kristaps  484:                        return(DELIM_OPEN);
1.213     schwarze  485:                case '|':
1.186     kristaps  486:                        return(DELIM_MIDDLE);
1.213     schwarze  487:                case '.':
1.186     kristaps  488:                        /* FALLTHROUGH */
1.213     schwarze  489:                case ',':
1.186     kristaps  490:                        /* FALLTHROUGH */
1.213     schwarze  491:                case ';':
1.186     kristaps  492:                        /* FALLTHROUGH */
1.213     schwarze  493:                case ':':
1.186     kristaps  494:                        /* FALLTHROUGH */
1.213     schwarze  495:                case '?':
1.186     kristaps  496:                        /* FALLTHROUGH */
1.213     schwarze  497:                case '!':
1.186     kristaps  498:                        /* FALLTHROUGH */
1.213     schwarze  499:                case ')':
1.186     kristaps  500:                        /* FALLTHROUGH */
1.213     schwarze  501:                case ']':
1.186     kristaps  502:                        return(DELIM_CLOSE);
                    503:                default:
                    504:                        return(DELIM_NONE);
                    505:                }
                    506:
                    507:        if ('\\' != p[0])
                    508:                return(DELIM_NONE);
1.100     kristaps  509:
1.186     kristaps  510:        if (0 == strcmp(p + 1, "."))
                    511:                return(DELIM_CLOSE);
1.200     schwarze  512:        if (0 == strcmp(p + 1, "fR|\\fP"))
1.186     kristaps  513:                return(DELIM_MIDDLE);
                    514:
                    515:        return(DELIM_NONE);
1.211     schwarze  516: }
                    517:
                    518: void
1.240     schwarze  519: mdoc_deroff(char **dest, const struct roff_node *n)
1.211     schwarze  520: {
                    521:        char    *cp;
                    522:        size_t   sz;
                    523:
1.239     schwarze  524:        if (n->type != ROFFT_TEXT) {
1.211     schwarze  525:                for (n = n->child; n; n = n->next)
                    526:                        mdoc_deroff(dest, n);
                    527:                return;
                    528:        }
                    529:
                    530:        /* Skip leading whitespace. */
                    531:
                    532:        for (cp = n->string; '\0' != *cp; cp++)
                    533:                if (0 == isspace((unsigned char)*cp))
                    534:                        break;
                    535:
                    536:        /* Skip trailing whitespace. */
                    537:
                    538:        for (sz = strlen(cp); sz; sz--)
                    539:                if (0 == isspace((unsigned char)cp[sz-1]))
                    540:                        break;
                    541:
                    542:        /* Skip empty strings. */
                    543:
                    544:        if (0 == sz)
                    545:                return;
                    546:
                    547:        if (NULL == *dest) {
                    548:                *dest = mandoc_strndup(cp, sz);
                    549:                return;
                    550:        }
                    551:
                    552:        mandoc_asprintf(&cp, "%s %*s", *dest, (int)sz, cp);
                    553:        free(*dest);
                    554:        *dest = cp;
1.186     kristaps  555: }

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